The femoral nerve is one of the major peripheral nerves of the lower limb. Descriptions: Nerve roots: L2-L4 Motor functions: Innervates the anterior thigh muscles that flex the hip joint (pectineus, iliacus, sartorius) and extend the knee (quadriceps femoris: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius). Sensory functions: Supplies cutaneous branches to the…
Introduction The abdominal muscles form the anterior and lateral abdominal wall and consist of the external abdominal obliques, the internal abdominal obliques, the rectus abdominis, and the transversus abdominis. Acting together these muscles form a firm wall that protects the viscera and they help to maintain erect posture. In addition the contraction of these muscles…
Anatomy of Gluteal Muscle Gluteus muscle, any of the large, fleshy muscles of the buttocks, stretching from the back portion of the pelvic girdle (hipbone) down to the greater trochanter, the bony protuberance at the top of the femur (thighbone). These include: 1) gluteus maximus2) gluteus medius3) gluteus minimus. 1) GLUTEUS MAXIMUS: This is a…
The Median Nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus. Anatomy of Median Nerve: The median nerve originates from the lateral and medial cords of the brachial plexus and has contributions from ventral roots of C5-C7 (lateral…
Anatomy of the Calf muscle The calf muscle is located on the back of the lower leg and is actually made up of two muscles: The medial and lateral heads of the gastrocnemius muscle, which is the most superficial, are present. The gastrocnemius muscle belly is formed by the convergence of its two heads. The…
Hamstring Muscle Anatomy The hamstrings are a group of muscles and their tendons at the rear of the upper leg. They include the biceps femoris, semitendinosus, and semimembranosus. The hamstrings flex the knee joint and extend the thigh to the backside of the body. They are used in walking, running, and many other physical activities….
The ulnar nerve is a major peripheral nerve of the upper limb. The ulnar nerve is located in the medial side of the forearm. It runs from the large cubital tunnel in the elbow down to the fourth and fifth fingers. The ulnar nerve supplies sensation to both sides of the hand and contributes muscles…
Anatomy and Physiology Of Sciatic Nerve Origin and Branches of the Sciatic Nerve: The sciatic nerve starts in the lower spine and follows a long path through the buttock, down the back of the thigh and leg, and finally ends in the foot. Origin of Sciatic Nerve : The sciatic nerve is formed by the…
The radial nerve is a major peripheral nerve of the upper limb. The radial nerve is a nerve in the arm that provides sensation to the skin on the back of the hand and the thumb side of the forearm. It is the largest nerve in the upper arm, and is a mixed nerve. The…
Coarctation (ko-ahrk-TAY-shun) of the aorta — or aortic coarctation — is a narrowing of the aorta, the large blood vessel that branches off your heart and delivers oxygen-rich blood to your body. When this occurs, your heart must pump harder to force blood through the narrowed part of your aorta. Coarctation of the aorta is…
